Self-Adhesive Electrodes provide excellent conductivity and are intended for use with Transcutaneous Electrical Nerve Stimulator's (TENS) and Electrical Muscle Stimulator's (MS) units. These premium pads should last for 8 to 10 uses, depending upon care of the pads and condition of the skin. Made with high quality Tyco gel, the Self Adhesive Electrodes are a great option at a value price.